![]() A quality level established on a prearranged system of inspection using samples selected at random.Īs-cast condition Casting without subsequent heat treatment.īacking sand The bulk of the sand in the flask. If your experience is like mine you'll see all sorts of little low spots show up that would have revealed themselves after paint.This Glossary of Metalcasting Terms provides the casting designer and purchaser with practical definitions of common metalcasting phrases and terms.ĪQL Acceptable Quality Level. I would sure recommend shooting some additional primer/surfacer over an area such as a door or long quarter that you thought you had straight with a Dura Block, giving it some guide coat, and hitting it again with a long masonite strip held with two hands at the ends so it is pushed into shape to conform to the original curve, which is very important to do in that case or with the PVC also. ![]() The soft blocks get used on very curved surfaces only and even then a piece of PVC pipe is often better. With a white work truck I didn't care so much but on my car I'm doing there's no way that's acceptable and I'm back to my "old" trick of using 1/4" Masonite strips, around 18" (or more) x 2", as sanding blocks on side areas where I or whoever else is likely to get the gun-sight view. My truck has little dips all the way down the sides because of that. ![]() ![]() I bought the full set of Dura Blocks and while they were easy to use and good for some areas I found they tend to follow the minor waves on long panels instead of cutting them flat, which is very noticeable after paint. ![]()
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